This is something that is taken in stages as knowledge, skill, training and experience are built up.
We start breathing air and not diving deeper than 60'. We have enough to keep us busy with learning bouyancy control, how to move, what to do, what not to do, and generally getting comfortable in the water.
We seek advanced training and may go as deep as 100'. We are still learning and practicing our basic skills and as we learn more we find that there is so much more to study, learn and apply.
We go to school again and learn to use gas other than air. NITROX, geezer gas, voodoo gas, enriched air, whatever you call it you now learn about O2 toxicity not as an abstract concept but as a real factor in our dive planning and execution.
We learn decompression diving, how to plan and execute dives with planned, required stops on the way up. Usually at this point people are using doubles and are learning to carry deco bottles.
We learn about gases other than air and nitrox. People used to think we said funny things, now we sometimes talk funny too, due to the Helium in our breathing gas. Lots more theory, planning, diving and practice. Lots of money too. He is not so inexpensive as air.
There is a whole world of progression available in this stage as the dives get more complex, either due to duration, depth or both.
At this level divers spend far more time planning and analyzing than they do diving and most of them spend a lot of time diving.
Divers can stop at any point in the progression or can go much deeper. Some go a different route and take up rebreathers. They have a whole bunch of other things to study and practice along with the rest of the deep diving fun.
Commercial divers add a whole different array of equipment and have the option of saturation diving, plus the fun of getting complex work done while doing all of that fun diving.
What to do?
Read!
Read everything you can get your hands on, or that you can get onto your screen. Lots of the concepts don't come together right away but keep at it and you will understand.
Dive, dive as much as you like. If you practice a few skills on each dive you will keep growing as a diver.
Increase depth and complexity only when you are comfortable and have a reason for doing so. I don't dive deep just to be deep. I dive deep because that is where the job is, or there is a wreck there I want to see.
We start breathing air and not diving deeper than 60'. We have enough to keep us busy with learning bouyancy control, how to move, what to do, what not to do, and generally getting comfortable in the water.
We seek advanced training and may go as deep as 100'. We are still learning and practicing our basic skills and as we learn more we find that there is so much more to study, learn and apply.
We go to school again and learn to use gas other than air. NITROX, geezer gas, voodoo gas, enriched air, whatever you call it you now learn about O2 toxicity not as an abstract concept but as a real factor in our dive planning and execution.
We learn decompression diving, how to plan and execute dives with planned, required stops on the way up. Usually at this point people are using doubles and are learning to carry deco bottles.
We learn about gases other than air and nitrox. People used to think we said funny things, now we sometimes talk funny too, due to the Helium in our breathing gas. Lots more theory, planning, diving and practice. Lots of money too. He is not so inexpensive as air.
There is a whole world of progression available in this stage as the dives get more complex, either due to duration, depth or both.
At this level divers spend far more time planning and analyzing than they do diving and most of them spend a lot of time diving.
Divers can stop at any point in the progression or can go much deeper. Some go a different route and take up rebreathers. They have a whole bunch of other things to study and practice along with the rest of the deep diving fun.
Commercial divers add a whole different array of equipment and have the option of saturation diving, plus the fun of getting complex work done while doing all of that fun diving.

What to do?
Read!
Read everything you can get your hands on, or that you can get onto your screen. Lots of the concepts don't come together right away but keep at it and you will understand.
Dive, dive as much as you like. If you practice a few skills on each dive you will keep growing as a diver.
Increase depth and complexity only when you are comfortable and have a reason for doing so. I don't dive deep just to be deep. I dive deep because that is where the job is, or there is a wreck there I want to see.